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Oni Bearing (for Road Bikes)

鬼ベアリング / JTEKT Corporation (Official website) / Listed on page 9 of the document

Road bike bearing that achieves lower torque than existing products.

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Oni Bearing (for Road Bikes) on page 9 of JTEKT Corporation "特殊環境用軸受シリーズ セラミック軸受"
Source: JTEKT Corporation「特殊環境用軸受シリーズ セラミック軸受」page 9
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Specifications

Limiting speed (grease lubrication) 100~600 min-1

How to choose Rolling Bearings

Points to check when selecting, with the values for this product (Oni Bearing (for Road Bikes)).

  1. 1. Bore and housing bore dimensions

    Select the bore diameter d to match the shaft seat, the outside diameter D to match the housing bore, and the width B to suit the installation space. Main dimensions are standardized in ISO and JIS dimension series, so interchangeable products can be found by boundary dimension designation. For tapered roller bearings, also check the assembled width T; for thrust bearings, also check the height H.

  2. 2. Dynamic load rating based on life calculation

    The basic dynamic load rating Cr is the reference value for calculating rated life. Verify that the required life is met using the equivalent load during operation and the rotational speed. For ball bearings, life is proportional to the cube of the load ratio, so providing load margin greatly extends life.

  3. 3. Margin for static and shock loads

    The basic static load rating C0r is the allowable standard for permanent deformation generated at the rolling elements and raceways under stationary or low-speed conditions. For applications with oscillating motion or shock loads, confirm that a static safety factor against the maximum load is secured using C0r.

  4. 4. Operating speed and lubrication method

    This product: Limiting speed (grease lubrication) 100~600 min-1

    The limiting speed differs by lubrication method, and separate values are given for grease lubrication and oil lubrication. Confirm that the normal operating speed does not exceed the limiting value, and in high-speed ranges also consider cage material and precision grade. The reference speed can also be consulted as a thermal guideline.

  5. 5. Precision grade and internal clearance

    Precision grades (P0, P6, P5, etc.) indicate rotational accuracy and dimensional accuracy; for high-precision applications such as machine tool spindles, select higher grades. Internal clearance (C2, CN, C3, etc.) is selected to allow for changes caused by interference fit and temperature differences during operation.

  6. 6. Materials and lubrication suited to the environment

    For corrosive, high-temperature, vacuum, or clean environments, select specifications such as rings and rolling elements made of stainless steel or ceramics, or solid lubricants and fluorine grease for vacuum use. Check the operating temperature range, low dust generation, and whether food-grade grease registration applies against the application conditions.

This guide was written by AI based on the listed products' documents and specification items.

About Rolling Bearings and all products

Description

Hybrid ceramic bearing using ceramic balls, aiming for light pedal starts and maintained wheel speed.

Features

  • Low torque
  • Compatible with high-speed rotation

Applications

  • Road bikes

FAQ

Q. What are the features and applications of the Oni Bearing (for Road Bikes)?
A. It is a road bike bearing that achieves lower torque than existing products. It is a hybrid ceramic bearing using ceramic balls, aiming for light pedal starts and maintained wheel speed. Its features are low torque and compatibility with high-speed rotation.
Q. What is the limiting rotational speed of the Oni Bearing (for Road Bikes)?
A. For grease lubrication, the limiting rotational speed is 100~600 min-1.

Written by AI based on the content of the source documents.

Source documents

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